CN204404703U - Adverse current air dry oven - Google Patents

Abstract

The utility model discloses a countercurrent blast drying box, the blast drying box is a rectangular shell, a drying chamber is arranged in the middle of the shell, and two vertical layered partitions are arranged in the drying chamber to dry The warehouse is divided into three drying areas. There are several sets of positioning blocks evenly distributed on the side walls of the drying area. The positioning blocks are movably connected with a storage tank. The bottom and top of the storage tank are composed of ventilation screens. The top of the tank is provided with a positioning rod that is movably connected to the positioning block in the drying area; the utility model adopts the vertical drying area structure set in the drying warehouse to facilitate the airflow to pass through the drying area vertically, and the vertically placed material storage tank The materials in the machine are blown and dried, and the contact between the airflow and the materials is sufficient, which greatly improves the drying efficiency of the materials; while drying, the occurrence of material splashing is avoided, and the storage and collection of materials are convenient.

Description

Countercurrent Blast Drying Oven

technical field

The utility model relates to the field of laboratory drying equipment, in particular to a countercurrent blast drying box with high drying efficiency.

Background technique

The drying oven is one of the commonly used equipment for drying operations in the laboratory. Its working principle is: the process of vaporizing the moisture or solvent in the solid through high temperature, and the generated vapor is taken away by the gas. During the drying of solids, water or solvents diffuse from the interior of the solid to the surface and then vaporize from the surface.

In the general drying process, the airflow is used for auxiliary drying. The airflow can not only take away the moisture or solvent vapor during the drying process, but also contact the surface of the material through the airflow to increase the airflow velocity on the surface of the material, and finally improve the drying efficiency of the material. However, the airflow in the drying box commonly used on the market is not in direct contact with the materials during the circulation process in the box (because the materials used for drying are all powdery or granular materials, if the airflow is used to dry directly, it will cause Material splashing, inconvenient storage and collection of materials). Therefore, the drying efficiency of the material in the drying process is relatively low, and it takes a long drying time to achieve the purpose of complete drying.

Utility model content

In view of the above existing problems, the purpose of the utility model is to provide a countercurrent blast drying oven with high drying efficiency and simple operation.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows: a countercurrent blast drying box, the blast drying box is a rectangular shell, the middle part of the shell is provided with a drying chamber, the The bottom of the casing is provided with a heating chamber, the bottom of the heating chamber is provided with an air inlet, the top of the casing is provided with an air outlet connected to the drying chamber, and the drying chamber is provided with two vertical The layered partition divides the drying bin into three drying areas. There are multiple sets of positioning blocks evenly distributed on the side walls of the drying area. The positioning blocks are movably connected with a material storage tank. Both the bottom and the top of the material storage tank are composed of ventilation screens, and the top of the material storage tank is provided with a positioning rod that is movably connected to the positioning block in the drying area.

As an improvement of the utility model, the storage tank is a trapezoidal storage tank, the top ventilation screen and the bottom ventilation screen are arranged on the storage tank, and the cross-section of the top ventilation screen The area is smaller than the cross-sectional area of the bottom ventilation screen; through the trapezoidal storage tank structure with a smaller top and a larger bottom, more airflow is introduced during the passage of airflow, which further improves the drying efficiency of materials in the storage tank.

As an improvement of the utility model, the top ventilation screen is movably connected to the storage tank through a rotating shaft, and the bottom ventilation screen is fixedly connected to the storage tank; the bottom ventilation screen of the storage tank It is used to store materials and prevent them from falling into the drying bin. The ventilation screen on the top of the storage tank is used to store and collect materials. The operation is simple and convenient. At the same time, it prevents materials from splashing under the action of updraft during the drying process. situation, the practical effect is good.

As an improvement of the utility model, the housing is provided with a rotary sealing cover, and the inner surface of the rotary sealing cover is provided with a sealing ring to connect with the drying chamber; through the sealing cover and the sealing ring on the sealing cover The sealing effect of the entire drying chamber is guaranteed, and the dry air flow enters from the air inlet at the bottom of the housing and is discharged from the air outlet at the top of the housing.

As an improvement of the utility model, the air inlet and the air outlet are connected through a circulation pipeline, and a dryer and a blower are arranged on the circulation pipeline; the drying box connected through the circulation pipeline avoids the The loss of heat energy during the drying process reduces energy loss, and at the same time absorbs excess water or solvent vapor through the dryer to avoid secondary drying.

The utility model has the advantages that: the utility model adopts the vertical drying zone structure set in the drying bin, so that when the airflow passes through the drying zone vertically, the air blast drying operation is performed on the materials in the vertically placed storage tank, and the airflow and the material The contact between them is sufficient, which greatly improves the drying efficiency of the material; during the drying process, the material floats up and down in the storage tank with the dual action of airflow and gravity, and avoids the occurrence of material splash while drying efficiently. The utility model has the advantages of convenient collection and good practical effect.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the utility model;

Among them, 1 shell, 2 drying chamber, 3 heating chamber, 4 layered partition, 5 positioning block, 6 storage tank, 7 positioning rod, 8 top ventilation screen, 9 bottom ventilation screen, 10 air inlet , 11 air outlet, 12 blower, 13 dryer, 14 sealing cover, 15 sealing ring.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1: a kind of countercurrent blast drying box as shown in Figure 1, described blast drying box is a rectangular housing 1, and the middle part of described housing 1 is provided with drying chamber 2, and described shell The bottom of the body 1 is provided with a heating chamber 3, the bottom of the heating chamber 3 is provided with an air inlet 10, the top of the housing 1 is provided with an air outlet 11 connected to the drying chamber 2, and the drying chamber 2 is provided with two vertical layered partitions 4 to divide the drying chamber 2 into three drying areas, and multiple sets of positioning blocks 5 are evenly distributed on the side walls of the drying area, and the positioning blocks 5 A material storage tank 6 is movably connected to the upper part. The bottom and top of the material storage tank 6 are composed of ventilation screens 9 and 8. The top of the material storage tank 6 is provided with a positioning rod 7 which is movably connected in the drying area. on the positioning stopper 5.

Embodiment 2: As shown in Figure 1, the storage tank 6 is a trapezoidal storage tank, and the top ventilation screen 8 and the bottom ventilation screen 9 are arranged on the described storage tank 6, and the top ventilation screen The cross-sectional area of 8 is smaller than the cross-sectional area of the bottom ventilation screen 9; through the trapezoidal storage tank 6 with a smaller top and a larger bottom, more air is introduced during the passage of the air to facilitate the full contact of the material and the air, and further The drying efficiency of the material in the storage tank 6 is improved.

Embodiment 3: As shown in Figure 1, the top ventilation screen 8 is movably connected to the storage tank 6 through a rotating shaft, and the bottom ventilation screen 9 is fixedly connected to the storage tank 6; the bottom of the storage tank 6 The ventilation screen 9 is used to store materials to prevent them from falling into the drying bin 2, and the top ventilation screen 8 of the storage tank 6 is used to store and collect materials, which is simple and convenient to operate, and at the same time prevents materials from being In the case of splashing under the action of updraft, the practical effect is good.

Embodiment 4: As shown in Figure 1, the housing 1 is provided with a rotary sealing cover 14, and the inner surface of the rotary sealing cover 14 is provided with a sealing ring 15 to connect with the drying bin 2; through the sealing cover 14 and the sealing cover The sealing ring 15 on the top ensures the sealing effect of the entire drying chamber 2, and ensures that the dry air enters from the air inlet 10 at the bottom of the housing 1 and is discharged from the air outlet 11 at the top of the housing 1.

Embodiment 5: As shown in Figure 1, the air inlet 10 and the air outlet 11 are connected through a circulation pipeline, and the described circulation pipeline is provided with a drier 13 and a blower 12; a drying box shell connected through a circulation pipeline Body 1 avoids the loss of heat energy during the drying process, reduces energy loss, and at the same time absorbs excess water or solvent vapor through the dryer 13 to avoid the occurrence of secondary drying.

It should be noted that the above are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Equivalent transformations made on the basis of the above embodiments all belong to the protection scope of the present utility model.

Claims (5)

1. A countercurrent blast drying box, the blast drying box is a rectangular shell, the middle part of the shell is provided with a drying chamber, and the bottom of the shell is provided with a heating chamber, it is characterized in that , the bottom of the heating chamber is provided with an air inlet, and the top of the housing is provided with an air outlet connected to the drying chamber, and the drying chamber is provided with two vertical layered partitions to separate the drying chamber Divided into three drying areas, the side walls of the drying area are evenly distributed with multiple sets of positioning blocks, the positioning blocks are movably connected with a storage tank, and the bottom and top of the storage tank are both Composed of ventilation screens, the top of the storage tank is provided with a positioning rod that is movably connected to the positioning block in the drying area. 2. The countercurrent blast drying oven as claimed in claim 1, wherein said storage tank is a trapezoidal storage tank, and said storage tank is provided with a top ventilation screen and a bottom ventilation screen , the cross-sectional area of the top ventilation screen is smaller than the cross-section area of the bottom ventilation screen. 3. The countercurrent blast drying oven according to claim 2, wherein the top ventilation screen is movably connected to the storage tank through a rotating shaft, and the bottom ventilation screen is fixedly connected to the storage tank superior. 4. The countercurrent blast drying oven according to claim 1, characterized in that, the housing is provided with a rotary sealing cover, and the inner surface of the rotary sealing cover is provided with a sealing ring to connect with the drying chamber. 5. The countercurrent blast drying oven according to claim 1, wherein the air inlet and the air outlet are connected through a circulation pipeline, and a dryer and a blower are arranged on the circulation pipeline.